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(No Model.)

, WHIFFLBTREE PLATE.

-.No. 283,615. Patented. Aug. 21, 18,83.

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n'rssr CHARLES H. KERNS, OF PORT BYRON ,NEW YORK.

WHlFFLETREE-PLATE.

SPECIFICATION forming part of Letters Patent No. 283,615, dated August21, 1883. Application filed June 23, 1883. (N0 model.)

To all whom it may concern Be it known that I, (inns. H. Knmvs, acitizen of the United States, residing at Port Bryon, in the county ofCayuga and State of New York, have invented certain new and usefulImprovements in Devices for Locking Single-Trees to Double-Trees; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

Figure -l of the drawings is a top view. Fig. 2 is a top view of theunder plate. Fig. 3 is a vertical sectional view. Figs. 4 and 5 aredetail views. Fig. 6 is a top view of upper plate; Fig.7, bottom view ofthe same; and Fig. 8 is a side view of the bottom plate.

This invention has relation to means for connecting whiffletrees to thecross-bars of shafts, or single-trees to the ends of doubleand itconsists in the construction and novel arrangement of devices, ashereinafter set forth, and particularly pointed out in the appendedclaims.

In the accompanying drawings, the letter a designates the lower plate,which is formed with front and rear flanges, b b, to engage the crossbaror the end of a double-tree; The top of this plate is provided with alongitudinal flanged lug, c,which is centrally arranged, and is designedto engage a flanged or dovetail slideway, c, in a broad circularlockinghead, d. Outwardly beyond one of the flanges of the plate aextends a horizontal bearing lip or flange, f, which is perforated at gfor the passage of the bolt 71.

k represents the upper plate, which is formed with front and rearflanges, Z Z, to engage the single-tree. Between these flanges a centralopening, m, is made in this plate, said opening having internal ledgesor shoulders, n, to engage the marginal portion of the locking head (Iand the end flanges. of the lug c. From the opening at extends outwardlya passage, p, of sufficient width to admit the lug c, and providing ameans whereby said lug can be introduced into position in engagementwith the locking-head. The plate A: is provided with a lip or flange, a,which extends outwardly and horizontally over and in contact with theflange f of the lower plate, a. In the flange c is made an arcshapedslot, 3, the curvature of which is concentric with that of thelocking-head d, and through which the bolt h is designed to pass,receiving a broad nut, 2, which bears on the slotted flange c.

The plates at and it having been respectively secured to the cross-barand whiffletree, the connection is made by turning the whiffletree atright angles to the length of the cross-bar, so that the transversepassage p can be passed over the lug c of the lower plate until said lugis in engagement with the locking head. Then the single-tree is turnedinto position for use, and the bolt h is put in place, connecting theflanges f and o. The cross-bar and single-tree are in this mannersecurely connected, while suflicient freedom of motion is allowed to thesingle-tree by the arc-slot s. Should the plates become loose, so as torattle, the nut 2 can be turned up on the bolt h sufliciently to preventthe noise without obstructing thefree movement of the single-tree plate.

Having described this invention, what I claim, and desire to secure byLetters Patent, 1s

1. The COlIlblIl21=lil0ll,Wlth the plate at, having the longitudinalend-flanged lug c, of the singletree plate in, having theinternally-shouldered opening an, and the locking-head (I, having theslide'way e, substantially as specified.

2. The combination, with the plate a, having the longitudinal lug c andthe perforated lipflange f, of the single-tree plate It, having theinternally-shouldered opening in and the slotted flange o, thelocking-head (1, bolt h, and nut z, substantially as specified.

3. The combination,with a'lower plate having a longitudinal end-flangedlug centrally arranged, of a single-tree plate having an internallyshouldered central opening and a transverse passage leading therefrom,and a circular locking-head engaging the central opening and theend-flanged lug, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES H. KERNS.

